No. Just no. Don't base a whole grid on one TV/book series. And if you must (which you shouldn't do here), at least explain your groups. The Moat group is utterly meaningless to me, for example. Are those locations? I won't ever know because you didn't bother to write it in the solution.

Puzzled, don't be an arsehole. There are plenty of grids on specific subject like sport or football, or music etc. If you did badly that's because it's not your area of knowledge, no need to be hostile

Fun grid but easy

I agree with Puzzled but each to their own.